svn commit: r359818 - head/sys/kern

[Konstantin Belousov]

Author: kib
Date: Sun Apr 12 05:10:48 2020
New Revision: 359818
URL: https://svnweb.freebsd.org/changeset/base/359818

Log:
  sendfile_iodone: correct calculation of the page index for relookup.
  
  This is yet another bug in r359473.
  
  Reported and tested by:	delphij
  Sponsored by:	The FreeBSD Foundation
  MFC after:	2 weeks

Modified:
  head/sys/kern/kern_sendfile.c

Modified: head/sys/kern/kern_sendfile.c
==============================================================================
--- head/sys/kern/kern_sendfile.c	Sun Apr 12 03:10:29 2020	(r359817)
+++ head/sys/kern/kern_sendfile.c	Sun Apr 12 05:10:48 2020	(r359818)
@@ -298,7 +298,7 @@ sendfile_iodone(void *arg, vm_page_t *pa, int count, i
 		for (i = 0; i < count; i++) {
 			if (pa[i] == bogus_page) {
 				pa[i] = vm_page_relookup(sfio->obj,
-				    sfio->pindex0 + i + (sfio->pa - pa));
+				    sfio->pindex0 + i + (pa - sfio->pa));
 				KASSERT(pa[i] != NULL,
 				    ("%s: page %p[%d] disappeared",
 				    __func__, pa, i));